1276367312 has 20 divisors (see below), whose sum is σ = 2697776736. Its totient is φ = 580166880.

The previous prime is 1276367299. The next prime is 1276367317. The reversal of 1276367312 is 2137636721.

It is a super-2 number, since 2×1276367312² = 3258227030284210688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1276367317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3625868 + ... + 3626219.

Almost surely, 2^1276367312 is an apocalyptic number.

It is an amenable number.

1276367312 is an abundant number, since it is smaller than the sum of its proper divisors (1421409424).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1276367312 is a wasteful number, since it uses less digits than its factorization.

1276367312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7252106 (or 7252100 counting only the distinct ones).

The product of its digits is 63504, while the sum is 38.

The square root of 1276367312 is about 35726.2832099842. The cubic root of 1276367312 is about 1084.7389242088.

The spelling of 1276367312 in words is "one billion, two hundred seventy-six million, three hundred sixty-seven thousand, three hundred twelve".